63081786164 has 24 divisors (see below), whose sum is σ = 110702558400. Its totient is φ = 31452540480.

The previous prime is 63081786139. The next prime is 63081786227. The reversal of 63081786164 is 46168718036.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6393467 + ... + 6403325.

It is an arithmetic number, because the mean of its divisors is an integer number (4612606600).

Almost surely, 2^63081786164 is an apocalyptic number.

It is an amenable number.

63081786164 is a deficient number, since it is larger than the sum of its proper divisors (47620772236).

63081786164 is a wasteful number, since it uses less digits than its factorization.

63081786164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14183 (or 14181 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 50.

The spelling of 63081786164 in words is "sixty-three billion, eighty-one million, seven hundred eighty-six thousand, one hundred sixty-four".